Watch Full Movie Online. A love letter to Mar del Plata made of images, times and a road trip. "The Happy Ones" is an experimental short documentary composed of past and present family footage. It portrays a place in the summer, the city of Mar del Plata, with a span of 20 years between past and present images (January 2000 and 2020). Despite the time that passed by, it's beaches, essence and people remain, always willing to keep dancing.